package com.spc.car.core.framework.security.service;

import com.spc.car.core.framework.enums.UserStatus;
import com.spc.car.data.entity.sys.SysRole;
import com.spc.car.data.entity.sys.SysUser;
import com.spc.car.data.service.sys.SysRoleService;
import com.spc.car.data.service.sys.SysUserService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;
import com.spc.car.common.exception.BaseException;
import com.spc.car.common.utils.StringUtils;
import com.spc.car.core.framework.security.LoginUser;

import java.util.List;
import java.util.Set;

/**
 * 用户验证处理
 *
 * @author spc.oa.core
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService
{
    private static final Logger log = LoggerFactory.getLogger(UserDetailsServiceImpl.class);

    @Autowired
    private SysUserService userService;

    @Autowired
    private SysPermissionService permissionService;

    @Autowired
    private SysRoleService sysRoleService;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException
    {
        SysUser user = userService.selectUserByUserName(username);
        if (StringUtils.isNull(user))
        {
            log.info("登录用户：{} 不存在.", username);
            throw new UsernameNotFoundException("登录用户：" + username + " 不存在");
        }
        else if (UserStatus.DELETED.getCode().equals(user.getDelFlag()))
        {
            log.info("登录用户：{} 已被删除.", username);
            throw new BaseException("对不起，您的账号：" + username + " 已被删除");
        }
        else if (UserStatus.DISABLE.getCode().equals(user.getStatus()))
        {
            log.info("登录用户：{} 已被停用.", username);
            throw new BaseException("对不起，您的账号：" + username + " 已停用");
        }

        return createLoginUser(user);
    }

    public UserDetails createLoginUser(SysUser user) {
        Set<String> permissions = permissionService.getMenuPermission(user);
        List<SysRole> roles = sysRoleService.listRoleByUserId(user.getUserId());

        LoginUser loginUser =  new LoginUser(user, permissions);

        loginUser.setRoles(roles);

        return loginUser;
    }
}
